A.擺度; B.凈擺度; C.凈全擺度; D.相對(duì)擺度;
A.擺度; B.全擺度; C.凈擺度; D.凈全擺度;
A.0.10~0.30; B.0.20~0.40; C.0.30~0.50; D.0.40~0.50;